The life span of the fruit flies which were fed with the medium containing carrot juice was longer than those fed with the medium containing radish juice.

 
  • 在玉米粉培养基上分别添加胡萝卜汁和白萝卜汁喂养果蝇,吃胡萝卜汁的果蝇平均寿命和最高寿命都较长;
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